#include <stdio.h>
#include <math.h>
int main()
{
    int i, j, k, c;
    for (i = 1; i <= 9; i++)
        for (j = 0; j <= 9; j++)
            if (i != j)
            {
                k = i * 1000 + i * 100 + j * 10 + j;
                for (c = 31; c * c < k; c++)
                    if (c * c == k)
                        printf(" lorry_no is %d.\n", k);
            }
}